diff --git a/codegen/bin/gocc b/codegen/bin/gocc
deleted file mode 100644
index 5df4a87..0000000
Binary files a/codegen/bin/gocc and /dev/null differ
diff --git a/codegen/generate.sh b/codegen/generate.sh
index bd73b0f..3e0983b 100644
--- a/codegen/generate.sh
+++ b/codegen/generate.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 
-./bin/gocc simd_avx.c    --arch avx2   -O1 --package bitmap -o ../ 
-./bin/gocc simd_avx512.c --arch avx512 -O3 --package bitmap -o ../
-./bin/gocc simd_neon.c   --arch neon   -O3 --package bitmap -o ../
-./bin/gocc simd_apple.c  --arch apple  -O3 --package bitmap -o ../
\ No newline at end of file
+# requires gocc: go install github.com/kelindar/gocc/cmd/gocc@latest 
+
+gocc simd_avx.c    --arch avx2   -O1 --package bitmap -o ../ 
+gocc simd_avx512.c --arch avx512 -O3 --package bitmap -o ../
+gocc simd_neon.c   --arch neon   -O3 --package bitmap -o ../
+gocc simd_apple.c  --arch apple  -O3 --package bitmap -o ../
\ No newline at end of file
diff --git a/go.mod b/go.mod
index 9fe1647..f9e9f96 100644
--- a/go.mod
+++ b/go.mod
@@ -1,16 +1,16 @@
 module github.com/kelindar/bitmap
 
-go 1.18
+go 1.24.0
 
 require (
-	github.com/kelindar/simd v1.1.2
-	github.com/klauspost/cpuid/v2 v2.2.4
-	github.com/stretchr/testify v1.8.2
+	github.com/kelindar/simd v1.2.0
+	github.com/klauspost/cpuid/v2 v2.3.0
+	github.com/stretchr/testify v1.11.1
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e // indirect
+	golang.org/x/sys v0.41.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 96d6fff..6e91719 100644
--- a/go.sum
+++ b/go.sum
@@ -1,23 +1,16 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/kelindar/simd v1.1.2 h1:KduKb+M9cMY2HIH8S/cdJyD+5n5EGgq+Aeeleos55To=
-github.com/kelindar/simd v1.1.2/go.mod h1:inq4DFudC7W8L5fhxoeZflLRNpWSs0GNx6MlWFvuvr0=
-github.com/klauspost/cpuid/v2 v2.2.4 h1:acbojRNwl3o09bUq+yDCtZFc1aiwaAAxtcn8YkZXnvk=
-github.com/klauspost/cpuid/v2 v2.2.4/go.mod h1:RVVoqg1df56z8g3pUjL/3lE5UfnlrJX8tyFgg4nqhuY=
+github.com/kelindar/simd v1.2.0 h1:1nSnINZRchuZwjnfqM01gV04RkJg0zz62ZC4hZQRYis=
+github.com/kelindar/simd v1.2.0/go.mod h1:inq4DFudC7W8L5fhxoeZflLRNpWSs0GNx6MlWFvuvr0=
+github.com/klauspost/cpuid/v2 v2.3.0 h1:S4CRMLnYUhGeDFDqkGriYKdfoFlDnMtqTiI/sFzhA9Y=
+github.com/klauspost/cpuid/v2 v2.3.0/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
-github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e h1:CsOuNlbOuf0mzxJIefr6Q4uAUetRUwZE4qt7VfzP+xo=
-golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/range_test.go b/range_test.go
index 9f78420..89e9902 100644
--- a/range_test.go
+++ b/range_test.go
@@ -17,7 +17,6 @@ func BenchmarkRange(b *testing.B) {
 	run(b, "range", func(index Bitmap) {
 		index.Range(func(x uint32) {
 			i = x
-			return
 		})
 	})